Lunging
Harry was walking up to the library alone after Quidditch practice - he had punishment work for Potions, again -when he suddenly felt the hair on the back of his neck prickle.
Acting completely on instinct, he ducked and rolled forwards. A beam of red light bounced off the stone floor a few inches before him as he sprang to his feet and whipped around to face his attacker, a curse ready on his lips.
Upon seeing his attacker - and his attacker's open smile - he tucked his wand away neatly, then abruptly lunged forward, tackling him to the floor.
"Gotcha Sev!"
~Fin~
Sorry for the late update, I overslept 'cause I stayed up too late last night watching a movie with my beta - who is still not up yet, but she went over this last night for me, so I could post it before she gets up - again.